|
(11) | EP 0 169 540 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
|
|
|
|||||||||||||||
| (54) | Method and apparatus for recording and reproducing a digital signal with a stationary head |
| (57) In a stationary head type PCM recorder having an AID converter for sampling an analog
signal and converting the analog signal to a digital signal, a signal processing circuit
including data delay means (4-8) for adding an error detection and correction code
and a predetermined signal to the digital signal for each error correction group of
a predetermined number of samples, and a multi-track head for recording an output
of the signal processing circuit on a plurality of tracks of a magnetic record medium
and reproducing the signals recorded on the magnetic record medium; incorrectability
of the error detection and correction code for a burst error in the output analog
signal due to a burst error in the reproduced output is reduced by delaying parity
words by the error detection and correction code and the digital signal data by different
delay times such that the digital signal data are dispersely recorded in a track direction
and a tape transport direction, and allotting the delayed data to the multi-track
head such that the data of the adjacent sample points are spaced from each other by
at least the distribution length of the parity words and the parity words is arranged
between the distributed adjacent data. |